Notes
First appeared in a somewhat different form in the February 1942 (number 4) issue of "Zenith". It is stated in "Collected Stories" that the version in Future magazine is "significantly revised".
Publications (64)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| January 1952 | Future Science Fiction Stories, January 1952 | Columbia Publications, Inc. | MAGAZINE | 83 |
| September 1952 | Future Science Fiction Stories, No. 6 | Thorpe & Porter | MAGAZINE | 83 |
| March 1956 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| March 1956 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| December 1957 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| 1962 | Reach for Tomorrow | Gollancz | Collection | 90 |
| December 1963 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| June 1965 | Prelude to Mars | Harcourt, Brace & World | Omnibus | 264 |
| August 1965 | Prelude to Mars | Harcourt, Brace & World / SFBC | Omnibus | 264 |
| 1966 | An ABC of Science Fiction | Four Square Books | Anthology | 18 |
| November 1966 | An ABC of Science Fiction | Four Square Books | Anthology | 18 |
| December 1968 | An ABC of Science Fiction | Avon | Anthology | 21 |
| March 1969 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| August 1969 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| 1970 | The Ends of Time: Eight Stories of Science Fiction | Hawthorn Books | Anthology | 41 |
| 1970 | Reach for Tomorrow | Harcourt, Brace & World | Collection | 96 |
| March 1970 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| August 1970 | Reach for Tomorrow | Corgi Books / Transworld Publishers | Collection | 108 |
| February 1971 | An ABC of Science Fiction | Avon | Anthology | 21 |
| March 1971 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| September 1971 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| June 1972 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| 1973 | A Collection of Prose and Poetry on the Theme of Tomorrow: Science Fiction and the Future | Scholastic | Anthology | 155 |
| 1973 | The Best of Arthur C. Clarke: 1937-1971 | Sphere | Collection | 35 |
| March 1973 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| October 1973 | The Best of Arthur C. Clarke: 1937-1971 | Sidgwick & Jackson | Collection | |
| November 1973 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| 1974 | Reach for Tomorrow | Corgi Books / Transworld Publishers | Collection | 108 |
| January 1974 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| January 1974 | The Best of Arthur C. Clarke: 1937-1971 | Sphere | Collection | 35 |
| July 1974 | Prelude to Mars | Harcourt, Brace & World / SFBC | Omnibus | 264 |
| 1975 | 2001 and Beyond: Science Fiction Stories | Longman | Anthology | 53 |
| 1975 | Strange Glory | McClelland & Stewart | Anthology | 54 |
| December 1975 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| 1976 | The Best of Arthur C. Clarke: 1937-1955 | Sphere Books | Collection | 35 |
| 1976 | Reach for Tomorrow | Corgi | Collection | 108 |
| 1976 | The Best of Arthur C. Clarke: 1937-1955 | Sphere Books | Collection | 35 |
| September 1976 | Reach for Tomorrow | Ballantine Books | Collection | 90 |
| 1977 | Strange Glory | St. Martin's Press | Anthology | 54 |
| 1977 | Strange Glory | St. Martin's Press | Anthology | 54 |
| August 1977 | Reach for Tomorrow | Del Rey / Ballantine | Collection | 90 |
| August 1980 | Reach for Tomorrow | Del Rey / Ballantine | Collection | 90 |
| 1982 | The Best of Arthur C. Clarke: 1937-1955 | Sphere | Collection | 35 |
| September 1983 | Reach for Tomorrow | Del Rey / Ballantine | Collection | 90 |
| January 1985 | Reach for Tomorrow | Del Rey / Ballantine | Collection | 90 |
| June 1985 | Reach for Tomorrow | Gollancz | Collection | 90 |
| 1987 | Reach for Tomorrow | Del Rey / Ballantine | Collection | 90 |
| September 1987 | Reach for Tomorrow | Del Rey / Ballantine | Collection | 90 |
| December 1989 | Reach for Tomorrow | VGSF / Gollancz | Collection | |7 |
| October 1998 | Reach for Tomorrow | Del Rey / Ballantine | Collection | 102 |
| 2000 | The Collected Stories | Gollancz / Orion | Collection | 24 |
| December 2000 | The Ends of Time | Cosmos Books | Anthology | |
| February 2001 | The Collected Stories of Arthur C. Clarke | Tor | Collection | 24 |
| February 2001 | The Collected Stories of Arthur C. Clarke | Tor / SFBC | Collection | 24 |
| October 2001 | The Collected Stories of Arthur C. Clarke | Gollancz / Orion | Collection | 24 |
| January 2002 | The Collected Stories of Arthur C. Clarke | Orb | Collection | 24 |
| November 2008 | The Collected Stories of Arthur C. Clarke | Paw Prints | Collection | 24 |
| August 2010 | The Collected Stories: Volume One | Clipper / W. F. Howes | Collection | |24 |
| June 2011 | The Collected Stories of Arthur C. Clarke | Gollancz / Orion | Collection | |24 |
| November 2012 | History Lesson | RosettaBooks | Collection | |24 |
| November 2012 | Reach for Tomorrow | RosettaBooks | Collection | |
| 2016 | The Collected Stories of Arthur C. Clarke | RosettaBooks | Collection | |
| August 2016 | The Collected Stories of Arthur C. Clarke | Audible Studios | Collection | |24 |
| April 2022 | Arthur C. Clarke Audiobook Collection | MotionAudiobooks | Omnibus | |126 |